class Formatador

def display_compact_table(hashes, keys = nil, **options, &block)
  headers = keys || []
  widths = {}
  # Calculate Widths
  if hashes.empty? && keys
    keys.each do |key|
      widths[key] = key.to_s.length
    end
  else
    hashes.each do |hash|
      next unless hash.respond_to?(:keys)
      (headers + hash.keys).each do |key|
        if !keys
          headers << key
        end
        widths[key] = [ length(key), widths[key] || 0, length(calculate_datum(key, hash)) || 0].max
      end
      headers = headers.uniq
    end
  end
  # Determine order of headers
  if block_given?
    headers = headers.sort(&block)
  elsif !keys
    headers = headers.sort {|x,y| x.to_s <=> y.to_s}
  end
  # Display separator row
  split = "+"
  if headers.empty?
    split << '--+'
  else
    headers.each do |header|
      widths[header] ||= length(header)
      split << ('-' * (widths[header] + 2)) << '+'
    end
  end
  display_line(split)
  # Display data row
  columns = []
  headers.each do |header|
    columns << "[bold]#{header}[/]#{' ' * (widths[header] - header.to_s.length)}"
  end
  display_line("| #{columns.join(' | ')} |")
  display_line(split)
  hashes.each do |hash|
    if hash.respond_to? :keys
      columns = headers.map do |header|
        datum = calculate_datum(header, hash)
        width = widths[header] - length(datum)
        width = width < 0 ? 0 : width
        datum.is_a?(Numeric) && options[:numeric_rjust] ? "#{' ' * width}#{datum}" : "#{datum}#{' ' * width}"
      end
      display_line("| #{columns.join(' | ')} |")
    else
      if hash == :split
        display_line(split)
      end 
    end
    nil
  end
  display_line(split)
end